Optimization of Laser Remelting Process for Copper Surface Quality

• Published in: Protection of metals and physical chemistry of surfaces Vol. 60; no. 2; pp. 158 - 166
• Main Authors: Hengzheng Li, Chen, Yang, Chen, Shuai, Tao, Zichen, Zhu, Guang
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 2024; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Copper; Corrosion and Coatings; Dimensional measurement; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Laser beam melting; Materials Science; Melting; Metallic Materials; Morphology; Nanoscale and Nanostructured Materials and Coatings; Pulse duration; Surface properties; Surface roughness; Surface treatment; Tribology; Wear resistance; laser surface remelting; process parameters; surface quality
• ISSN: 2070-2051; 2070-206X
• DOI: 10.1134/S2070205124701569

In order to improve the surface quality of copper after laser surface remelting, this article takes laser frequency, pulse width and current as the research objects, and uses scanning electron microscopy (SEM), laser confocal three-dimensional measurement instrument, and friction and wear measurement instrument to study the surface morphology, surface roughness, and wear resistance of copper under different parameters. The results indicate that the frequency, pulse width, and current of laser surface remelting can directly affect the surface quality of the sample, but the influence of frequency and pulse width is more significant. When the laser remelting frequency is 10 Hz, the pulse width is 10 ms, and current is 100 A, the sample exhibits good surface morphology, roughness, and wear resistance. The relevant research in this article can provide a good reference for laser surface treatment of copper-based materials.